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(No Modl.)

' A. B. RHUDE. SELF FASTENING GIANT POWDER CAP. No. 501,440. PatentedJuly 11, 1893.

. Zfil/ms'sas' Jiwefim I fi, I fizorzzo .5, jz/zza de UNITED STATESPATENT OFFICE.

ALONZO B. RHUDE, OF THOMPSON FALLS, MONTANA, ASSIGNOR TO JOHN SWEENEY,OF SAME PLACE.

SELF-FASTENING GIANT-POWDER CAP.

sPEcIFIcATIoN'formm part of Letters Batent No. 501,440, dated July11,1893. Application filed November 19, 1892. Serial No. 452,527. (Nomodel.)

To all whom it may concern..-

Be it known that I, ALONZO B. RHUDE, a citizen of the United States,residing at Thompson Falls, in the county of'Missoula and State ofMontana, have invented certain new and useful Improvements inSelf-Fastening Giant-Powder Caps; and I do hereby de-' clare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. i

In blasting and other fuses many attempts have been made to provideagainst accidental slipping or dislodgment of the exploder or cap inwhich the exploding powder is confined, but for one reason or-- anotherthe desired security has not been provided. Therefore, the object ofmyinvention isto provide against accident, and to this end I havedevised and constructed the cap hereinafter fully described and shown bythe accompanying drawings in which Figure 1 is a plan view of the cap;Fig. 2 a sectional view showing the cap arranged on the end of a fusewith the turned under ends or barbs of the cap in position to penetratethe fuse, and Fig. 3 a modification.

As the use and arrangement of my cap will be readily understood by thoseskilled in the art to which it appertains I will state that the body Aof the cap is of ordinary construction. The open end thereof is providedwith fingers B having their points bent inwardly at a and outwardly at bforming barbs allowing the fuse to be shoved into the caps; but anystrain tending to withdraw the fuse causes the barbs or projectingpoints 1) to be embedded in the fuse and thus secure itself againstdislodgment. It being needless to further describe the advantages of acap, such as I have devised over the common cap now used, I will statethat I make no claim to any part of an exploder or cap for blasting,850., save the penetrating barbs, and I would here have it understoodthat I do not limit myself to the precise construction shown as it maybe modified in various ways to provide penetrating barbs such as shownat b Fig. 3, of the drawings without departing from the spirit of theinvention. This latter it will be observed is formed by making a Vshaped cut with point downward and bent inwardly so as to penetrate thefuse by reason of straintending to separate the fuse and cap.

Having thus what I claim as new is p 1. A blasting fuse having a cap,said cap being provided with inwardly projecting barbs, the points ofwhich are bent downwardly to allow free insertion of the fuse andautomatically engage it as set forth.

fully described my invention,

2. The combination with a blasting or other fuse, of a cap A, havingfingers B, formed by 1 V shapedcuts in the side of the cap; the saidfingers being benhinwardlyand downwardly as shown and for thepurpose setforth.

In testimony whereof I aifix my signature in presence of two witnesses.

' ALONZO B. RHUDE. Witnesses:

JOHN SWEENEY, PATRICK WHELAN.

